(adsbygoogle = window.adsbygoogle || []).push({}); So like it says in the title. How can I decrypt a .pup file? Or even .pkg? Or how can I code a pkg file? Like what programming language do I need to know? I know how to code a little bit of C++ could I use that?

I think you can view the files by PKGview.. but not decrypt it.

Okay, I'll check that out later. Thanks

I don't know much, but I believe pkg files are not encrypted with c++ :p There are a few programs where you can make your own custom firmware if you know what you are doing, of course they would be for 3.55 only. And for PKGView, yea you can extract files from the PKG but to "decrypt" a PKG is basically just extracting the files inside.

Do you know what language is used then?

I do not, sadly Like I said, I do not know much, so I could be wrong.

I guess I'll do some more research, and what are some programs that you can use to make jailbreaks?